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https://issues.apache.org/jira/browse/DERBY-1983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12479720
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Daniel John Debrunner commented on DERBY-1983:
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[this was posted to derby-dev today - also putting it here for reference]
Revision 516518 changes the default base compile level to JDK 1.4 (for
DERBY-1983). Basically two changes:
compile.classpath now defaults to java14compile.classpath
compiler target/source flags now use 1.4 instead of 1.3
I think this change will be transparent to everyone, i.e. nothing need change
in your setup. You can remove the setting j13lib from your ant.properties if
you want though.
I think some more changes are required before the instructions can be changed
to not require jdk 1.3 and the various optional downloads, I just need to go
through the build.xml files again and see which are still referenced & why.
Note that compile.classpath is not the same value logically as
java14compile.classpath even though the default setup makes them the same.
compile.classpath is used to compile classes that need to work in JDK 1.4 and
J2ME, whereas java14compile.classpath is used for classes that cannot run in
J2ME. I hopefully improved the comments around this in
tools/ant/properties/compilepath.properties.
Ideally one should be able to set compile.classpath to J2ME/CDC/Foundation 1.1
+ JSR 169 libraries and compile successfully. This is to allow greater
confidence that the base code will work on JSR169 and not rely on any JDK 1.4
features. I'm not sure it that actually works at the moment though, will be
checking that later.
> Change build system so that base level is JDK 1.4
> -------------------------------------------------
>
> Key: DERBY-1983
> URL: https://issues.apache.org/jira/browse/DERBY-1983
> Project: Derby
> Issue Type: Sub-task
> Components: Build tools
> Reporter: Daniel John Debrunner
> Assigned To: Daniel John Debrunner
>
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